Blog : PHP bin2hex() Function

PHP bin2hex() Function

--------------------------------------------------------------------------------
 Complete PHP String Reference
--------------------------------------------------------------------------------

Definition and Usage
The bin2hex() function converts a string of ASCII characters to hexadecimal values. The string can be converted back using the pack() function.

Syntax
bin2hex(string)  

Parameter Description
string Required. The string to be converted


--------------------------------------------------------------------------------

Example
In this example we will convert a string value from binary to hex and back:

$str = "Hello world!";
echo bin2hex($str) . "
";
echo pack("H*",bin2hex($str)) . "
";
?>  

The output of the code above will be:

48656c6c6f20776f726c6421
Hello world!